Be Generator - Westerbeke 8.0KW-60HZ Operator's Manual

BE GENERATOR
DESCRIPTION
. This generator is a four-pole, brushless, self-excited
generator which requires only the driving force of the engine
to produce AC outpuL The copper and laminated iron in the
exciter stator are respopsible for the self-exciting feature of
this generator. The magnetic field produced causes an AC
voltage to be induced into the related excitor rotor windings
during rotation. Diodes located in the exciter rotor rectify this
voltage to DC and supply it to the windings of the rotating
field. This creates an electromagnetic field which rotates
through the windings of the main stator, inducing an AC
voltage which is supplied to a load. An AC voltage is
produced in the auxiliary windings of the main stator and
is, in turn, supplied to a voltage regulator. The regulator
produces a DC voltage to further excite the exciter stator
windings, enabling the generator to produce a rated AC
output. The voltage regulator senses AC voltage output and
adjusts DC excitation to the exciter stator winding according
to amperage load the generator is furnishing. To maintain a
constant voltage output.
Voltage Adjustments
This potentiometer is used to adjust output voltage. At proper
engine operating speed the output voltage should be held at
±2% from a no-load condition to a full rated generator output
and from power factor 1.0 with engine drive speed variations
up to -6%.
With the alternator running at no-load, at normal speed, and
with VOLT adjust at minimum, it is possible that output
voltage will oscillate. Slowly rotate the VOLT adjustment
clockwise. The voltage output of the alternator will increase
and stabilize. Increase the voltage to the desired value.
CIRCUIT BREAKER
A circuit breaker is installed on all WESTERBEKE
generators. This circuit breaker will automatically disconnect
generator power in case of an electrical overload. The circuit
breaker can be manually shut off when servicing the
generator to ensure that no power is coming into the boat.
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GENERATOR INTERNAL
WIRING DIAGRAM
AUTOMATIC VOLTAGE
REGULATOR (AVR)
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AC OUTPUT WINDINGS 2
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V22
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V21
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AC OUTPUT WINDINGS 1
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CONNECTq
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FOR 50Hz
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f - - - - - - - - - - ________
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FOR EXTERNAL
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POTENTIOMETER
F2 (WHITE)
F1 (RED)
U1
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U2
UNUSED WIRE
,MOUNTING
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LOCATIONS
AVR CONNECTIONS -.. "....,
60 Hz -
120/240V_
U1
V11
60 Hz
·120V U1 V11
50 Hz·
230V _ _ _
U1 V12
CONTROL BOX
WESTERBEKE
Engines & Generators
40
AUTOMATIC
0
VOLTAGE
REGULATOR
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VOLTAGE
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ADJUSTMENT
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AC CIRCUIT BREAKER
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